Brand new, unused item. This is a support cushion set for use in a car. Please check the product images for the sizes. This product is sold on Amazon for 4980 yen. 【Uses High-Density Memory Foam】Uses low-resilience material that disperses the pressure on the buttocks and back. Provides a soft seating experience, making long hours of work or driving comfortable. 【Supports the Entire Back】Designed to fit the natural curve of the spine, gently supporting from the lower back to the shoulder blades. Comfortable posture is maintained even during long hours of sitting or driving. 【2-Piece Integrated Support】The combination of a seat cushion and a backrest cushion provides total support for the entire body. Reduces the burden on the buttocks, lower back, and back. 【For Cars and Offices】Suitable for a wide range of applications, including cars (sedans, kei cars, SUVs, trucks), office chairs, and even for working from home or gaming chairs. Non-slip processing prevents slippage, providing peace of mind. 【Ideal as a Gift】Recommended as a practical gift for those suffering from back pain, those who work long hours sitting, the elderly, and pregnant women. Perfect for birthdays, Mother's Day, and Father's Day.